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<head>
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  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
</head>
<body>
  <script src="./js/jquery-1.12.2.min.js"></script>
  <script>
  var mydata01=[
    {
      conutry_code:'R99',
      CNT:10,
      TOTAL_CNT:20
    }
  ]
  var mydata02={'R99':[111.222,222.333]}

  //将以上两组数据合并为
  // var need_data=[
  //   {
  //     conutry_code:'R99',
  //     CNT:10,
  //     TOTAL_CNT:20,
  //     VALUE:[111.222,222.333]
  //   }
  // ]

  var need_data=[]
  need_data=mydata01.map(function(item,i){
    var preItem=item;
    preItem.VALUE=mydata02[item.conutry_code]
    return preItem
  })
  console.log('need_data',need_data);
  </script>
</body>
</html>